Results 71 to 80 of about 164,575 (310)
Defining Regulatory Objectives for Contemporary Electronic Communications : Between a Rock and a Hard Place [PDF]
, 2008 Goal evaluation is an essential element of the process of designing regulatory frameworks. Lawyers and legal scholars do however tend to ignore it. The present paper stresses the importance of pinpointing the precise regulatory objectives in the fluid ...
Burri, Mira
core
Spectrally Encoded Proximity‐Field Nanopatterning
Advanced Optical Materials, EarlyView.Spectrally encoded proximity‐field nanopatterning (SEPN) enables continuous control of the out‐of‐plane periodicity of 3D photonic crystals by tuning the exposure wavelength while maintaining a fixed in‐plane period. This decouples near‐infrared reflectance from visible iridescence and allows fabrication of integrated multipattern devices with ...
Junhyung Park +6 more
wiley +1 more source
2024 IEEE 4th International Conference on Electronic Communications, Internet of Things and Big Data
This volume presents the proceedings of the 2024 IEEE 4th International Conference on Electronic Communications, Internet of Things, and Big Data (IEEE ICEIB 2024).
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Advanced Optical Materials, EarlyView.Large Faraday rotation at room temperature is observed in thin films of discotic copper (Cu2+: 3d9) and vanadyl (VO2+: 3d1) enaminoketone complexes. The large Verdet constant originates from a high density of paramagnetic centers, metal‐ligand p−d hybridization and π orbitals involved in optical transitions (identified by DFT calculations), as well as ...
Karolina Łempicka‐Mirek +8 more
wiley +1 more source
IEEE Access, 2019 When using traditional methods to measure the microwave/millimeter-wave emissivity of small targets, errors arise due to that the antenna's main lobe and side lobe cannot be completely covered by the target.
Jinlong Su +4 more
doaj +1 more source
Broadband Directional Thermal Radiation with Asymmetric Femtosecond Laser‐Processed Surfaces
Advanced Optical Materials, EarlyView.Femtosecond laser processing is used to scalably create self‐organized angled microstructures which exhibit highly directional emissivity that occurs for all polarizations. Laser parameters are tuned to alter the surface features, control the direction of emission, and enhance the directional emissivity. Electromagnetic modeling is performed to analyze
Andrew Butler +8 more
wiley +1 more source
LD-Pumped Random Fiber Laser Based on Erbium-Ytterbium Co-Doped Fiber
Photonic Sensors, 2019 In this paper, a cladding-pumped erbium-ytterbium co-doped random fiber laser (EYRFL) operating at 1550 nm with high power laser diode (LD) is proposed and experimentally demonstrated for the first time.
Qingyang Meng +4 more
doaj +1 more source
Advanced Optical Materials, EarlyView.Structural color generation is an emerging field for digital display and printing applications. This report presents a novel truncated‐cone design and the first use of GaP sandwiched between two layers of TiO2, demonstrating ultra‐bright, tunable colors with a record color gamut.
Md Rumon Miah +2 more
wiley +1 more source
Material Clustering Using Passive Millimeter-Wave Polarimetric Imagery
IEEE Photonics Journal, 2019 Passive millimeter-wave imaging has emerged as a useful tool in many remote sensing applications, including resource remote sensing, material classification, and target detection.
Jinlong Su +4 more
doaj +1 more source
Exciton Radiative Lifetimes in Hexagonal Diamond Ge and SixGe1–x Alloys
Advanced Optical Materials, EarlyView.Strong room‐temperature photoluminescence reported in hexagonal Ge conflicts with theory predicting a nearly dark band edge. First‐principles calculations of excitonic radiative lifetimes fill a key gap in this debate, showing that pristine hexagonal Ge remains intrinsically weakly emissive, while Si alloying only modestly shortens the lifetime and ...
Michele Re Fiorentin +2 more
wiley +1 more source